Answer:
9
Step-by-step explanation:
if x= 4; 2x+1
2(4) + 1
8 + 1
9
Jackie created a diagonal cross section cut on a sphere. What plane figure did she discover after making the cut?
If you cut a sphere diagonally or along any of its diameters, you will always get a circle as the plane figure because all diameters of a sphere are of equal length.
Explanation:In the field of mathematics, specifically in solid geometry, if Jackie created a diagonal cross section cut on a sphere, the plane figure that she would have discovered is a circle.
The concept behind this is that a sphere is a perfectly symmetrical three-dimensional figure. When we make a cross sectional cut along any diameter of the sphere (which is what Jackie did by making a diagonal cross section), we will always reveal a circular plane figure irrespective of the direction of this cut because all diameters of a sphere are of equal length, thus ensuring the cut is always a circle.
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A diagonal cross-section cut on a sphere will reveal a circle.
When Jackie made a diagonal cross-section cut on a sphere, she discovered a circle. Regardless of the angle or position of the cut, the intersection of a plane and a sphere always results in a circular shape. This fundamental geometric property arises from the symmetrical nature of spheres, where every cross-section manifests as a circle.
Thus, Jackie's diagonal cut revealed a circular plane figure, showcasing the inherent relationship between spheres and circles in geometry.
Answer these questions about the powers of 3.
What is the pattern as the exponents decrease?
Answer:
Divided by 3
1
1/3
1/27
Step-by-step explanation:
Answer: Divide by 3, 1, 1/3, 1/27
Step-by-step explanation:
what whole number does x represent
Let f(x) = 5x - x+1 and g(x) = -3x. Evaluate the composition (f • g)(1).
Replace the variable x with 1 in the expression
f(1)=5(1)−(1)+1
f(1) = 5
Replace the variable x with 1 in the expression.
g(1)=−3⋅1
g(1) = -3
Multiply 5 by −3
.
−15⋅1
Multiply −15
by 1
.
−15
Thus, the answer is -15
I am unsure about this answer, I have doublechecked it several times. Please take this with a grain of salt
Jamal ran 6 miles in 30 minutes which expression shows how to correctly determine his speed in miles per minute
Answer:
d= r/t
Step-by-step explanation:
i dont know if this is what youre looking for because i cant see the expression options but maybe it would be 6=r/30
10. The dot plot shows how many games
10 members played last month.
True or false?
a) The mode is 5 games
b) The median is 5 games
Answer:
A : False
B : False
Step-by-step explanation:
A : The mode of a data set is whichever number comes up the most.
8 comes up the most times, so 8 is the mode.
B : The median is a number which is in the middle of a data set
This is the data set as a list of numbers :
2, 5, 5, 5, 6, 6, 8, 8, 8, 8
the two sixes are in the middle, if there are 2 numbers in the middle, add them together and divide by two,
6 + 6 = 12
12 / 2 = 6
6 is the median.
Final answer:
The question relates to data analysis in Mathematics, focusing on the mode and median within a data set, which cannot be determined without the provided figures. The median is the middle value in an ordered data set, while the mode is the most frequent value.
Explanation:
The subject of this question is Mathematics, specifically focusing on concepts related to data analysis such as mode, median, and box plots. Without the actual dot plot or box plot figures provided, we cannot verify the true or false nature of the statements provided. However, generally, the mode is the number that occurs most frequently in a data set, and the median is the middle number when the data set is ordered from least to greatest. To construct a box plot for a given data set, you would need to calculate the minimum, first quartile, median, third quartile, and maximum of the data. These five statistics are then used to create the box plot, which provides a visual representation of the data distribution.
When discussing the median in a box plot, it is the value that divides the data set into two equal halves. The mode in contrast, may or may not correspond to any of the box plot’s five statistical summaries; it entirely depends on the frequency of the individual values.
Find the missing side length in the following triangle.
A 169
B 10
C 1
D 13
The missing side length in the triangle with a hypotenuse of 85 and perpendicular of 84 is 13.
To find the missing side length a in the right triangle, you can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
So, in this case, we have:
[tex]\[ \text{hypotenuse}^2 = \text{perpendicular}^2 + \text{base}^2 \][/tex]
Given:
- Hypotenuse ( c ) = 85
- Perpendicular ( b ) = 84
- Base ( a ) = ?
Substituting the given values into the Pythagorean theorem equation:
[tex]\[ 85^2 = 84^2 + a^2 \][/tex]
[tex]\[ 7225 = 7056 + a^2 \][/tex]
Now, subtract 7056 from both sides:
[tex]\[ 169 = a^2 \][/tex]
To solve for a, take the square root of both sides:
[tex]\[ a = \sqrt{169} \][/tex]
a = 13
So, the missing side length ( a ) is 13.
Therefore, the correct answer is option D: 13.
Miranda enlarged a picture twice as shown below, each time using a scale factor of 3.
A rectangle with length 6 inches and width 4 inches is enlarged twice.
Which statements apply to the enlargements? Select three options.
A.The area of the first enlargement is 72 square inches.
B.The area of the second enlargement is 1,944 square inches.
C.The area of the second enlargement is (3 squared) squared times the original area.
D.The area of the second enlargement is 3 times the area of the first enlargement.
E.The ratio of the area of the first enlargement to the area of the original equals the square of the scale factor.
Answer:
B, C, E are true
Step-by-step explanation:
A = l*w
The original rectangle is 6 by 4 with A = 24
The 1st enlargement = 6*3 by 4*3
18 by 12 with A = 216
The second enlargement is 18*3 by 12*3
54 by36 with A =1944
A.The area of the first enlargement is 72 square inches.
False it is 216
B.The area of the second enlargement is 1,944 square inches.
True
C.The area of the second enlargement is (3 squared) squared times the original area.
216/24 =9 True
D.The area of the second enlargement is 3 times the area of the first enlargement.
1944/24 = 9 False
E.The ratio of the area of the first enlargement to the area of the original equals the square of the scale factor.
The scale factor is 3 3^2 =9 216/24 =9
True
Gertrude makes a one time deposit of $1200 into an account that pays 7% annual interest compounded continuously. Assuming Gertrude makes no additional deposits or withdraws. how much money would be in the account after 3 years? Round to the nearest penny.
Answer:$14701
Step-by-step explanation:
1) at the end of the first year the account will be 1*(12 000)+0,07*(12 000)=1,07*12 000,
2) at the end of the second year 1*(1.07*12 000) + 0.07*(1.07*12 000) = 1.1449*12 000,
3) at the end of the third year 1*(1,1449*12 000) + 0.07*(1,1449*12 000) = 1.225*12 000 = 14,700.516 = 14701
Answer: $14701
y=-3x + 6
y = 9
What is the solution to the system of equations?
(-21,9)
(9,-21)
(9,-1)
Answer:
(-1, 9) (he x value is placed first).
Step-by-step explanation:
y = -3x + 6
y = 9
Substitute y = 9 into the first equation:
9 = -3(x) + 6
-3x = 9 - 6
-3x = 3
x = -1.
I lost track on how to do this in high school I’m helping out my lil brother
a. -7 < |-9|
b. 2 > -2
c, |-5| = |5|
Answer: A: <
B: >
C: =
Step-by-step explanation: that is the absolute value, you find the absolute value and then see which is bigger or smaller
Four students drew graphs of a linear function. Which student drew a line with a slope of 3?
Analise
On a coordinate plane, a line goes through points (negative 3, 0) and (0, 1).
Benito
On a coordinate plane, a line goes through points (0, negative 1) and (1, 2).
Charlie
On a coordinate plane, a line goes through points (0, negative 3) and (0, 3).
Dariya
On a coordinate plane, a line goes through points (2, 3) and (3, 0).
Analise
Benito
Charlie
Dariya
Answer:
the answer is benito or 2
Step-by-step explanation:
Answer:
benito
Step-by-step explanation:
100% edge 2020! :)))
A regular hexagon and a regular octagon are joined as shown on the diagram.
Work out the size of angle x.
The interior angle of a regular hexagon is 120°. As two hexagons share a side, [tex]\( x \)[/tex] equals 120°.
In the given diagram, two regular hexagons share a common side, and an interior angle marked as [tex]\( x \)[/tex] is formed by the sum of the interior angles of the two hexagons. The interior angle of a regular hexagon is [tex]\( \frac{{180^\circ \times (n-2)}}{n} \)[/tex], where [tex]\( n \)[/tex] is the number of sides. For a hexagon [tex](\( n = 6 \))[/tex], this angle is [tex]\( \frac{{180^\circ \times (6-2)}}{6} = 120^\circ \)[/tex].
Considering the interior angles of both hexagons and the angle [tex]\( x \)[/tex], the equation [tex]\( 120^\circ + 120^\circ + x = 360^\circ \)[/tex] arises, as the sum of angles around a point is 360°. Solving for [tex]\( x \) yields \( x = 120^\circ \).[/tex] Therefore, the measure of angle [tex]\( x \)[/tex] in the diagram is 120°.
This solution demonstrates the application of the interior angle formula for a regular hexagon and the consideration of the total angle around a point, resulting in the determination that [tex]\( x \) is indeed \( 120^\circ \).[/tex]
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Simplify the expression. Write your answer as a power.
(−5/7)^8⋅(−5/7)^9
The expression [tex](-5/7)^8*(-5/7)^9[/tex] simplifies to [tex](-5/7)^{17[/tex] by adding the exponents, as multiplication of powers with the same base results in adding the exponents.
To simplify the expression [tex]\((-5/7)^8 \cdot (-5/7)^9\)[/tex], you can add the exponents since the bases are the same. When you multiply two powers with the same base, you add their exponents. So, [tex]\(8 + 9 = 17\)[/tex]. Therefore, the expression simplifies to [tex]\((-5/7)^{17}\)[/tex]. When multiplying powers with the same base, like [tex]\((-5/7)^8\)[/tex] and [tex]\((-5/7)^9\)[/tex], you add their exponents. So, [tex]\(8 + 9 = 17\)[/tex].
This means that when you multiply these two expressions together, you end up with the base raised to the power of 17, which is [tex]\((-5/7)^{17}\)[/tex]. This is a fundamental property of exponents, where you can combine like terms to simplify expressions. In this case, the final expression represents the product of the two original expressions raised to the power of 17.
So, the simplified expression is [tex]$(-5 / 7)^{17}$[/tex]
To simplify the expression [tex]$(-5 / 7)^8 \cdot(-5 / 7)^9$[/tex] we can combine the bases and add the exponents since they have the same base:
[tex]$\begin{gathered}(-5 / 7)^8 \cdot(-5 / 7)^9=(-5 / 7)^{8+9} \\ =(-5 / 7)^{17}\end{gathered}$[/tex]
So, the simplified expression is [tex]$(-5 / 7)^{17}$[/tex]
PLEASE HELP WILL MARK BRAINLIEST choose the ordered pair that is NOT the solution for these equations.
x + y = 12
y = 12 - x
A-15,1
B 0,12
C 1,11
Answer:
The answer is A)
Step-by-step explanation:
A)-15+1=14
B)0+12=12
C)1+11=12
Carrie gave her hair stylist a $4.20 tip. The tip was 15% of the cost of the
haircut. What is the total cost of the haircut?
The total cost of her haircut was 28 dollars
step by step:
(percentage) 15 x 6 = 90
4.20 x 6 =25.2
(perscentage) 15 divided by 3 = 5
4.20 divided by 3 = 1.4
1.4 + 1.4 = 2.8
25.2 + 2.8 =28
Final answer:
The total cost of the haircut before adding the tip was $28.00, found by setting up an equation where 15% of the total cost is equal to the $4.20 tip and solving for the total cost.
Explanation:
To calculate the total cost of the haircut that resulted in a $4.20 tip given at the rate of 15%, we need to set up a proportion where 15% of the total cost equals $4.20.
Step 1: Represent the unknown total cost of the haircut by the variable x.
Step 2: Set up the equation representing the tip as 15% of the total cost (0.15x = $4.20).
Step 3: Solve for x by dividing $4.20 by 0.15.
x = $4.20 / 0.15
x = $28.00
Therefore, the total cost of the haircut before adding the tip was $28.00.
3.5x - 11 = 20.5 what does x equal?
Answer:
x=9
Step-by-step explanation:
3.5x - 11 = 20.5
Add 11 to each side
3.5x - 11+11 = 20.5+11
3.5x = 31.5
Divide each side by 3.5x
3.5x/3.5 = 31.5/3.5
x =9
Answer:
x=9 (don't look at explanation)
Step-by-step explanation:
Let's solve your equation step-by-step.
3.5x−11=20.5
Step 1: Add 11 to both sides.
3.5x−11+11=20.5+11
3.5x=31.5
Step 2: Divide both sides by 3.5.
3.5x
3.5
=
31.5
3.5
x=9
Answer:
x=9
The Booneville History Museum had 25,000 visitors in 1980. The number of visitors has decreased by 2.5% each
year since 1980 Wien
year since 1980. Write a function (t) to represent the number of visitors to the Booneville History Museumt
years after 1980.
A-v(t) = 25000(0.025)
B -v(t) = 25000(0.25)
C-v(t) = 25000(0.975)
D-v(t) = 25000(1.025)
Answer:
Option c: -v(t) = 25000(0.975)
Step-by-step explanation:
Kindly check the attached file for explanation
To represent the number of visitors to the Booneville History Museum t years after 1980, the correct function is D-v(t) = 25000(1.025).
Explanation:To represent the number of visitors to the Booneville History Museum t years after 1980, we can use the formula v(t) = 25000(1 - 0.025)^t. This is because the number of visitors decreases by 2.5% each year. The term (1 - 0.025)^t represents the decay factor where t is the number of years after 1980.
Therefore, the correct function to represent the number of visitors to the Booneville History Museum t years after 1980 is D-v(t) = 25000(1.025).
The cylinder diameter and height both is 39.2 millimeters what is the volume
Answer:
v=23160.24
Step-by-step explanation:
v= r^2 * h * π
19.6 ^2 = 384.16 r = d/2
384.16 * 19.2 * 3.14 39.2 / 2 = 19.6
23160.24
Hope this isn't too confusing!
how many thirds are in 4/5? complete an area model and give the quotient.
What is the scientific notation for 96,470,000
Answer:
9.647×10^7
Step-by-step explanation:
The decimal is moving to the left so the 7 is positive.
There are 39 counters in a bag.
14 of the counters are red.
The rest of the counters are blue,
One of the counters is taken at random.
What is probability that the counter is blue.
Answer:
There fore the probability that the counters are blue is [tex]\frac{15}{39}[/tex]
Step-by-step explanation:
There are a total of 14 red counters and 39 in total. The total of red counter can be represented as a fraction of [tex]\frac{14}{39}[/tex]. To find out the number of blue counter we subtract 14 from 39. This gives us 25. This is [tex]\frac{15}{39}[/tex]. Therefore the probability that the counters are blue is
Answer:
25/39
Step-by-step explanation:
The total is 39
Red=14
So to determine blue,it will be
39-14=25
So blue will be 25
So to determine the probability for picking blue
It will be
25/39
Since there's no common number that can divide the two
The final answer is 25/39
Which Point has an x-coordinate of 4?
Answer:
s has an x-coordinate of 4
Step-by-step explanation:
the coordinate is (4,-5)
effrey typed 110 words in 2 2/3 minutes. At this rate, how many words can he type in 4 1/4 minutes?
First, you find the rate at which Jeffery types.
110 divides by 2.75. This makes 40.
Then to find the amount of words he types in 4.25 minutes,
40 x 4.25. This makes 170.
So Jeffery can type 170 words in 4 1/4 minutes.
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A honey bee flaps its wings at 220 flaps per second, a bumblebee flaps its wings at 145 flaps per second, and a mosquito flats its wings at 600 flaps per second. which insect wing pitch would be lowest to highest
Answer:
it would be
bumblebee
mosquito
honey bee
Step-by-step explanation:
The insect wing pitch from lowest to highest is mosquito (600 flaps per second), honey bee (220 flaps per second), and bumblebee (145 flaps per second).
Explanation:The insect wing pitch from lowest to highest would be as follows:
Mosquito: 600 flaps per secondHoney bee: 220 flaps per secondBumblebee: 145 flaps per secondThe mosquito has the highest wing pitch as it flaps its wings at 600 times per second, followed by the honey bee at 220 flaps per second, and the bumblebee at 145 flaps per second.
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find the area pls and ty
Answer:
28.5 units squared
Step-by-step explanation:
8x3 is the bottom rectangle and added 3x3x0.5 cuz it is a triangle. Add the areas and u get 4.5+24 or 28.5 units squared
a circle has a radius of the square root of 131 units and is centered at (0, -4.3)
Answer:
x² + (y + 4.3)² = 131
Step-by-step explanation:
Equation of a circle:
(x - h)² + (y - k)² = r²
(x - 0)² + (y - -4.3)² = (sqrt131)²
x² + (y + 4.3)² = 131
Which of the following equations could be the result of using the comparison method to solve the system shown? x - 4y - 1 = 0 x + 5y - 4 = 0
4y + 1 = 4 - 5y
-4y + 1 = 4 - 5y
4y + 1 = 5y - 4
Answer:
Option A.
Step-by-step explanation:
The given system of equations is
[tex]x-4y-1=0[/tex]
[tex]x+5y-4=0[/tex]
The given equations can be rewritten as
[tex]x=4y+1[/tex]
[tex]x=4-5y[/tex]
Using comparison method, compare the values of x.
[tex]4y+1=4-5y[/tex]
Therefore, the correct option is A.
Answer:
number 1:
4y +1 = 4 - 5y
Please help me with this :c
Will give TWENTY POINTS!!
Answer:
Area of a triangle formula is 1/2 x base x height
Area of the garden = 1/2 x 25 x 10 = 125 square feet.
1 bag covers 10 square feet, divide total area by 10"
125 / 10 = 12.5
She will need to buy 13 bags.
6. Rectangle ABCD is shown above. AB =
3x+8, and CD = 2x+13. Find x.
Answer:
x=5
Step-by-step explanation:
3x+8=2x+13
x+8=13
x=5